4-(((2R,3R,4R,5R)-5-(6-Amino-2-fluoro-9H-purin-9-yl)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-fluorotetrahydrofuran-3-yl)oxy)-4-oxobutanoic acid

4-(((2R,3R,4R,5R)-5-(6-Benzamido-9H-purin-9-yl)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-((tert-butyldimethylsilyl)oxy)tetrahydrofuran-3-yl)oxy)-4-oxobutanoic acid

4-(((2R,3R,4R,5R)-5-(4-Acetamido-2-oxopyrimidin-1(2H)-yl)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-fluorotetrahydrofuran-3-yl)oxy)-4-oxobutanoic acid

4-(((2R,3R,4R,5R)-3-(Bis(4-methoxyphenyl)(phenyl)methoxy)-4-((tert-butyldimethylsilyl)oxy)-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methoxy)-4-oxobutanoic acid

4-(((2R,3R,4R,5R)-5-(6-Benzamido-9H-purin-9-yl)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-(2-methoxyethoxy)tetrahydrofuran-3-yl)oxy)-4-oxobutanoic acid

4-(((2R,3R,4R,5R)-2-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-((tert-butyldimethylsilyl)oxy)-5-(2-isobutyramido-6-oxo-3,6-dihydro-9H-purin-9-yl)tetrahydrofuran-3-yl)oxy)-4-oxobutanoic acid

4-(((2R,3R,4R,5R)-3-(Bis(4-methoxyphenyl)(phenyl)methoxy)-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-4-fluorotetrahydrofuran-2-yl)methoxy)-4-oxobutanoic acid

2-{2-[(Benzyloxy)carbonyl]-5-oxa-2-azaspiro[3.5]nonan-6-yl}acetic acid

3-{[(Benzyloxy)carbonyl]amino}-2-methanesulfonyl-2-methylpropanoic acid

2-[(benzyloxy)carbonyl]-6,6-difluoro-octahydro-1H-isoindole-3a-carboxylic acid

1-[(Benzyloxy)carbonyl]-3-fluoro-4,4-dimethylpyrrolidine-3-carboxylic acid

(6R)-5-[(benzyloxy)carbonyl]-1H,4H,5H,6H,7H-imidazo[4,5-c]pyridine-6-carboxylic acid

Ethyl 1-(3-aminophenyl)cyclopropane-1-carboxylate

1-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]cyclopropane-1-carboxylic acid

4-{[(Benzyloxy)carbonyl]amino}-2-ethylbenzoic acid

2-ethyl-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)benzoic acid

2-{[(2-{[(Benzyloxy)carbonyl]amino}-5-methylphenyl)carbamoyl]amino}acetic acid